OK, I'll try to get through the rest of my life while not knowing what I'm talking about as you so kindly pointed out.
Disagree, you want to follow the Pro's and fade the Retail money. Buy/sell the trend is easy to say, hard to do, where every pull back could be a trend reversal which you aim to buy, exposing yourself to that risk..
Yes, but too many automatically attach the title of Pro to any bank, broker or hedge fund just because they trade in size. Do all such traders constantly make profits to where they could be called Pro? Is somebody's Granny who makes a living by trading not a Pro? Hard to learn how to do, and after that not really that hard to do. Reading if that is the case or not can be learned.
The difference is where one invests trust. Do you invest to trust in yourself or not? The first can build the second. The second relies on the differentiated mind of the first. The better the first, the better the second. Appreciating the ecology of nature will determine which to invest in. Invest in millions of years of evolution/Creation or couple of decades of AI/ML research?